Endocrine Abstracts

Introduction: In patients with ACTH-dependent Cushing Syndrome, differentiating between pituitary and ectopic sources can be challenging. Noninvasive testing can be performed, but bilateral inferior petrosal sinus sampling (BIPSS) remains the gold standard. In the last years however, novel imaging modalities, namely 3T-MRI with 3-dimensional spoiled gradient-echo sequence and 68Ga-tagged CRH combined with positron emission tomography, have been proposed as alternatives.<p ...

Introduction: Prolactinoma is the most frequent secreting pituitary tumor. They are usually treated with dopamine agonists (DA) (bromocriptine and cabergoline), which are very effective in most cases. DA resistance consists of the impossibility of reaching normal prolactin levels and/or reduction of the adenoma by at least 50%.Case presentation: We present the case of a 57-year-old man affected by visual disturbances and hypopituitarism (2019). Pituitary...

Introduction: Esthesioneuroblastoma (ENB), also known as olfactory neuroblastoma, is a malignant neuroendocrine tumor of the nasal fossa that arises from neurosensory receptor cells of the olfactory epithelium. It represents 3% of all nasal tumors. It presents a slow and progressive evolution that primarily affects the upper nasal mucosa and cribriform plate, with subsequent extension to the entire cavity and paranasal sinuses and can invade the orbit and cranial base.<p c...

Background: The purpose of this study was to register the frequency and cause of method-dependent interference in the Roche thyroid immunoassays observed in our laboratory.Methods: Serum samples to confirm discordant thyroid results were collected from June 2013 to September 2018, in samples sent to the Hormone Laboratory, Oslo University Hospital. The laboratory serves as a reference laboratory on thyroid diseases for about 2/3 of the inhabitants of Nor...

Objective: To assess the prevalence of complications In a cohort of patients with type 2 diabetes mellitus (T2DM).Material and methods: Prospective cohort study. 465 patients with T2DM who were not followed-up at an endocrinology clinic were included. The follow-up was carried out during 26 weeks. The prevalence of complications was evaluated throughout the study. This study was approved by the Ethics and Clinical Research Committee of the University Hos...

Background: We have previously shown that LC-MS/MS analyses of steroid hormones are superior to immunoassays monitoring 21OHD, due to better specificity and the possibility to multiplexing several steroid hormones in the same assay. This may lead to better understanding of the individual steroid hormone profile in patients with CAH. Here we present four patients cases with the same genotype in the CYP21A2 gene, and evaluate their steroid profile by LC-MS/MS analyses.<...

Introduction: Primary hyperparathyroidism (PHPT) is disorder of one or more parathyroid glands, characterized by inadequately increased PTH secretion, almost always followed by hypercalcemia. Calcitonin, secreted by parafollicular C-cells in thyroid gland, is hypocalcemic hormone which partly acts as physiological antagonist of PTH.Aim: To evaluate calcitonin response in calcium infusion test in patients with primary hyperparathyroidism.<p class="abs...

Background: Diabetic kidney disease (DKD) is the main cause of end-stage renal disease It is defined by glomerular filtration rate (GFR) impairment and/or presence of increased urinary albumin excretion (UAE). However, these parameters are nonspecific and somewhat delayed manifestations of renal damage. Thus, earlier DKD new biomarkers are strongly warranted.Objective: To investigate the urinary peptidomics profile of type 2 diabetes mellitus (DM) patien...

Metabolic Syndrome (MetS) is a cluster of clinical conditions, associated to an increased cardiovascular and metabolic risk, to hypogonadism and erectile dysfunction (ED). Lifestyle modification (including physical exercise, PhyEx) and metformin (MET) are well-known treatments for the condition. We established an animal model of MetS that recapitulates the human phenotype, including andrologic derangements.The aim of this study was to investigate in expe...

Introduction: Vitamin D is a hormone that acts through the Vitamin D receptor (VDR) not only on the skeletal system but on a great number of target tissues, including thyroid gland. In recent years the association of vitamin D with autoimmune thyroid diseases (AITD), has been suggested.VDR gene polymorphisms had been associated with an increased risk of AITD. In addition a recent meta-analysis showed that AITD patients had lower level of 25-hydroxyvitami...